🛢️ LC Rambousek 1-10H

Murfin Drilling Company, Inc. · Dunn County, ND · File #42020 · Generated 2026-02-13 12:33

API: 3302505094
Target Formation: Middle Bakken
Permit Explained: Yes

📋 Permit Cycle Assessment

Permit approval dated 07/23/2025 is directly explained by operator request for completion method change and corresponding wellbore geometry revision. The new completion design (wet shoe, no frac-out capability) necessitated a 100' setback at the toe to protect the north boundary, requiring updated directional plans (PROPOSAL #4). Regulator explicitly conditioned approval on this wet shoe configuration and imposed a maximum legal coordinate limit of 10089' North at total depth. The setback constraint is not routine boilerplate; it is a non-standard, design-specific condition that differentiates this approval from standard horizontal drilling permits.

🔍 Permit Cycle Signals (3)

Change in completion method: shift from fully cemented shoe (Proposal #3) to wet shoe with no ability to frac out, requiring 100' setback to north boundary at toe

Direct

📄 Sundry Form FORM ID: 259762, dated 07/23/2025; Reviewer Comments page
📅 07/23/2025 (Exact confidence)

Completion design modification directly triggered setback constraint change from original permit. Wet shoe configuration explicitly precludes fracture propagation out of shoe, reducing risk to north boundary.

Regulatory approval conditioned on wet shoe completion with no frac-out capability and maximum legal coordinate limit of 10089' North at total depth

Direct

📄 Sundry Form FORM ID: 259762, Reviewer Comments (Emma Neigum, Engineering Technician); Additional Sundry Data page
📅 07/23/2025 (Exact confidence)

Regulator explicitly tied approval to completion design constraint and quantified setback boundary. This is the basis for permit modification versus routine APD language.

Directional plan revision (PROPOSAL #4 vs. PROPOSAL #3): updated wellbore diagram and directional plans submitted to justify setback modification

Supporting

📄 Sundry Form FORM ID: 259762, Description section; attached Planning Report dated 2025-07-18 (PROPOSAL #4)
📅 07/23/2025 (Exact confidence)

Technical submission supporting the completion design change. Proposal #4 incorporates 100' setback geometry constraint and revised bottom hole location coordinates.

📖 Historical Context (3)

Original permit (dated 05/30/2025, per dirt work date 06/23/2025) stipulated 50' north setback based on fully cemented shoe with no frac-out ability
📄 Application for Permit for New Well - Horizontal, Conditions of Approval stipulation; Drilling Prognosis dated 6/9/2025 · 📅 05/30/2025 | Inferred
Original permit condition creates the baseline against which the 07/23/2025 modification is measured. Historical 50' setback with fully cemented shoe persists in file record and establishes regulatory precedent for this drilling unit. Any future operations must reference both the original and amended geometry constraints.

Spud date 07/20/2025 and early completion modification request (received 07/23/2025) indicate tight operational timeline between spud and sundry approval
📄 Sundry Notification of Work Performed FORM ID: 259116, dated 07/20/2025; Sundry Request FORM ID: 259762, received 07/23/2025 · 📅 07/20/2025 to 07/23/2025
Completion design was modified post-spud during early drilling phase. This constrains future remedial actions and signals potential field conditions or risk reassessment that prompted operator to shift to wet shoe design mid-operation.

Waiver letter dated 06/2025 (undated, in affidavit package) confirms Murfin is self-operator of adjacent spacing unit and requested waiver to notify third-party operators under NDIC Order 34848
📄 Waiver letter re: Drillback 3148/5147S, unsigned draft in affidavit package · 📅 06/2025 | Relative
Self-operator status eliminates third-party notification obligation but does not waive directional compliance or inter-well spacing constraints. Wellbore geometry and setback rules remain in force.

🔧 Operator Pattern

Murfin Drilling submits technical plans and modifications with short lead times; requests multiple pre-spud waivers (filter sock container 06/17/2025, open hole log 06/17/2025) suggesting operational efficiency strategy; modifies completion design post-spud in response to field conditions or risk.
Filter Sock Container Waiver (FORM ID: 253784, approved 06/17/2025) and Open Hole Log Waiver (FORM ID: 253781, approved 06/17/2025) filed before dirt work date (06/23/2025). Completion method change filed 3 days after spud. Project Manager Tracey Fallang is consistent submitter across multiple sundries.

Confidence: High
Permit anchor date (07/23/2025 approval effective date) is explicit and matched to contemporaneous Sundry Form with reviewer comments. Completion design change and setback modification are clearly tied in operator description and regulator approval rationale. Directional planning documents (PROPOSAL #4) are dated and attached. No conflicting or ambiguous dates in the permit-cycle sequence. Historical context documents are dated and support operational timeline reconstruction. The only minor ambiguity is the exact spud time (5:30 a.m. on 07/20/2025 per notification), but this does not affect permit-cycle analysis.